The Christmas Flood of 1717 killed approximately 14,000 people across the Netherlands, Germany, and Scandinavia, making it one of the deadliest North Sea storms on record.
Key Facts
- Total deaths
- ~14,000 people
- Deaths between Tønder and Emden
- ~9,000 people
- Deaths in the Netherlands
- 2,500 people
- Population loss in Butjadingen
- 30%
- Houses washed away in East Frisia
- 900 houses
- Date of flood
- Christmas night, 25 December 1717
By the Numbers
Location
Cause → Event → Consequence
A powerful northwesterly storm developed in the North Sea on Christmas night 1717, driving massive storm surges toward the low-lying coastal regions of the Netherlands, Germany, and Scandinavia. The flat terrain and inadequate dyke systems left coastal communities highly exposed to the incoming floodwaters.
The storm breached dykes along the entire coastline from the Netherlands to Denmark, inundating towns including Groningen, Zwolle, Dokkum, Amsterdam, and Haarlem. Entire villages were destroyed, particularly in Groningen Province and East Frisia, where 900 houses were completely washed away and Butjadingen lost 30% of its population.
The flood left affected communities facing severe population loss, economic decline, and prolonged poverty. Survivors struggled to account for missing relatives for months, and a second storm flood struck on 25–26 February 1718, compounding the disaster. Massive losses of livestock and severe damage to dykes and sluices further hindered recovery across the region.
Human Cost
Each dot represents approximately 10,000 deaths. Total estimated: 14,000 (storm)